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1. A review on the use of chelating agents as an alternative to promote photo-Fenton at neutral pH: Current trends, knowledge gap and future studies

Author:
Ahile, Ungwanen J.; Wuana, Raymond A.; Itodo, Adams U.; Sha'Ato, Rufus; Dantas, Renato F.
Source:
The Science of the total environment 2020 v.710 pp. 134872
ISSN:
0048-9697
Subject:
iron; iron oxides,   etc   ; chelating agents; chelation; pH;     Show all 5 Subjects
Abstract:
... In this review, we have critically examined the alternatives to conventional photo-Fenton process such as the strategies to perform it in circumneutral pH in the so-called photo-Fenton like process. They include iron chelation, iron replacement with another metal and use of iron immobilized on surfaces of solid materials, use of iron oxides, among others. The use of such strategies can be employed ...
DOI:
10.1016/j.scitotenv.2019.134872

2. The sequestration of Cr(VI) by zero valent iron under a non-uniform magnetic field: An interfacial dynamic reaction

Author:
Zhang, Yue; Gao, Xuyan; Xu, Chunhua
Source:
Chemosphere 2020 v.249 pp. 126057
ISSN:
0045-6535
Subject:
iron,   etc   ; chromium; magnetic fields;     Show all 3 Subjects
Abstract:
... A non-uniform magnetic field was applied to sequester Cr(VI) with microscale zero-valent iron (ZVI). When the non-uniform magnetic field was applied, the average removal rate of Cr(VI) was increased and the lag phase was shortened with the increasing of magnetic field intensity. The instantaneous rate was fast at the beginning and about 40% of the Cr(VI) was sequestered rapidly when ZVI was added ...
DOI:
10.1016/j.chemosphere.2020.126057

3. Fine generation ratio of iron ore in the cyclone of a gas–solid circulating fluidized bed

Author:
Sung, Woo Chang; Kim, Jun Young; Ko, Chang Kuk; Lee, Dong Hyun
Source:
Powder technology 2020 v.363 pp. 256-264
ISSN:
0032-5910
Subject:
iron,   etc   ; catalysts; fluidized beds;     Show all 3 Subjects
Abstract:
... The generation of fines by attrition in fluidized bed reactors can cause problems. Thus, the objective of this study was to examine the amount of fines generated in the cyclone not only by attrition, but also by detachment of fine attached to surface according to time. Using a circulating fluidized bed (0.076 m ID × 3.7 m height), variables including cyclone inlet velocity (20.6–30.9 m/s), solid l ...
DOI:
10.1016/j.powtec.2019.12.042

4. Correction to: Influence of Leifsonia sp. on U(VI) removal efficiency and the Fe–U precipitates by zero-valent iron

Author:
Xie, Shuibo; Xiao, Xue; Tan, Wenfa; Lv, Junwen; Deng, Qinwen; Fang, Qi
Source:
Environmental science and pollution research international 2020 v.27 no.5 pp. 5595-5596
ISSN:
0944-1344
Subject:
iron,   etc   ; Leifsonia; uranium;     Show all 3 Subjects
Abstract:
... The original publication of this paper contains a mistake. ...
DOI:
10.1007/s11356-020-07720-9

5. Three-dimensional (Fe3O4/ZnO)@C Double-core@shell porous nanocomposites with enhanced broadband microwave absorption

Author:
Meng, Xun; Liu, Yequn; Han, Guanghui; Yang, Weiwei; Yu, Yongsheng
Source:
Carbon 2020 v.162 pp. 356-364
ISSN:
0008-6223
Subject:
iron; iron oxides,   etc   ; absorption; carbon; magnetism; nanocomposites; zinc; zinc oxide;     Show all 8 Subjects
Abstract:
... The synergistic effect of magnetic and dielectric materials makes this kind of composite as an ideal microwave absorber. So far, composite absorbing materials of Fe₃O₄ and carbon have been extensively studied and achieved excellent absorption properties. However, this type of absorber always has the problem of narrow effective absorption band (RL ≤ −10 dB). In this article, we have prepared 3D (Fe ...
DOI:
10.1016/j.carbon.2020.02.035

6. A simple and effective dansyl acid based “turn-on” fluorescent probe for detecting labile ferrous iron in physiological saline and live cells

Author:
Gao, Guangqin; Wang, Xiao; Wang, Zhimin; Jin, Xianchun; Ou, Ling; Zhou, Jingjing; Xie, Puhui
Source:
Talanta 2020 v.215 pp. 120908
ISSN:
0039-9140
Subject:
iron,   etc   ; fluorescence; fluorescent dyes; pH;     Show all 4 Subjects
Abstract:
... Labile ferrous iron (Fe²⁺) plays important biochemical functions in many physiologically essential processes. It is very important to find an effective method to detect Fe²⁺. Herein, a simple and effective Fe²⁺ fluorescent probe (FeP1) has been constructed via a unique strategy of Fe²⁺-induced reducing reaction. As expected, FeP1 exhibited a ‘turn-on’ fluorescence response toward Fe²⁺ over various ...
DOI:
10.1016/j.talanta.2020.120908

7. Breakage of green iron ore pellets

Author:
Tavares, Luís Marcelo; de Almeida, Rafaella F.
Source:
Powder technology 2020 v.366 pp. 497-507
ISSN:
0032-5910
Subject:
iron,   etc   ; deformation; furnaces; pelleting; pellets;     Show all 5 Subjects
Abstract:
... Mechanical degradation of green iron ore pellets prior to induration is a concern and can result in return of material to discs or drums or contamination of the feed to the induration furnace during pelletization. The work investigates the effects of pellet size, drop height, impact angle and type of surface on the response of pellets to multiple impacts, analyzing not only the critical condition ...
DOI:
10.1016/j.powtec.2020.02.074

8. A modified inverse-velocity method for predicting the failure time of landslides

Author:
Zhou, Xiao-Ping; Liu, Lin-Jiang; Xu, Ce
Source:
Engineering geology 2020 v.268 pp. 105521
ISSN:
0013-7952
Subject:
iron,   etc   ; coal; landslides; prediction; radar;     Show all 5 Subjects
Abstract:
... Prediction of the failure time of landslides is always an important issue. Based on Fukuzono's theory, which suggests that the logarithm of the surface displacement velocity is proportional to the logarithm of the surface displacement acceleration in the final stage of the slope movement just before failure, a modified inverse velocity method was proposed by introducing a controllable variable. On ...
DOI:
10.1016/j.enggeo.2020.105521

9. Sludge-derived biochar with multivalent iron as an efficient Fenton catalyst for degradation of 4-Chlorophenol

Author:
Gan, Quan; Hou, Huijie; Liang, Sha; Qiu, Jingjing; Tao, Shuangyi; Yang, Liang; Yu, Wenbo; Xiao, Keke; Liu, Bingchuan; Hu, Jingping; Wang, Yanfei; Yang, Jiakuan
Source:
The Science of the total environment 2020 v.725 pp. 138299
ISSN:
0048-9697
Subject:
iron; iron compounds; iron oxides,   etc   ; 4-chlorophenol; biochar; catalysts; pyrolysis; sewage sludge; temperature;     Show all 9 Subjects
Abstract:
... Fe-rich biochar with multivalent iron compounds (Fe⁰, Fe₀.₉₅C₀.₀₅, Fe₃O₄, and FeAl₂O₄) pyrolyzed from sludge cake conditioned with Fenton's reagent and red mud was utilized as an efficient Fenton catalyst for the degradation of 4-chlorophenol (4-CP). Effects of pyrolysis temperature and sludge conditioner composition on the transformation of iron compounds were studied. Both homogeneous Fenton rea ...
DOI:
10.1016/j.scitotenv.2020.138299

10. Food protein-derived iron-chelating peptides: The binding mode and promotive effects of iron bioavailability

Author:
Wu, Wenfei; Yang, Yiying; Sun, Na; Bao, Zhijie; Lin, Songyi
Source:
Food research international 2020 v.131 pp. 108976
ISSN:
0963-9969
Subject:
iron; iron absorption; iron deficiency anemia,   etc   ; bioavailability; developed countries; functional foods; humans; ionization; nutrient deficiencies; peptides; public health;     Show all 11 Subjects
Abstract:
... Iron is known as an essential nutrient in the human body. Insufficient iron uptake is easy to result in iron deficiency anemia, which is a public health problem in both developing and developed countries. Iron, complexed by iron-chelating peptides, have been proposed as a superior candidate to ionized iron for improving iron absorption and bioavailability. Nowadays, as more and more iron-chelating ...
DOI:
10.1016/j.foodres.2020.108976

11. Quantification of synergistic, additive and antagonistic effects of aerosol components on total oxidative potential

Author:
Guo, Huibin; Fu, Haiyan; Jin, Lei; Huang, Sijing; Li, Xiang
Source:
Chemosphere 2020 v.252 pp. 126573
ISSN:
0045-6535
Subject:
iron,   etc   ; aerosols; copper; manganese; prediction; quinones;     Show all 6 Subjects
Abstract:
... The interaction-based oxidative potential (OPᵢₙₜ) represents the prediction of binary mixture effects distinguishing from linear additivity by including information on binary mixtures among PM components. The objective of this work is to develope a reliable estimate on the possible synergistic or antagonistic possibility of binary PM components and to quantify the combined effect. We firstly asses ...
DOI:
10.1016/j.chemosphere.2020.126573

12. Removal of contaminants of emerging concern by continuous flow solar photo-Fenton process at neutral pH in open reactors

Author:
Arzate, S.; Campos-Mañas, M.C.; Miralles-Cuevas, S.; Agüera, A.; García Sánchez, J.L.; Sánchez Pérez, J.A.
Source:
Journal of environmental management 2020 v.261 pp. 110265
ISSN:
0301-4797
Subject:
iron,   etc   ; effluents; hydrogen peroxide; pH; wastewater treatment;     Show all 5 Subjects
Abstract:
... For the first time, the operational feasibility of the solar photo-Fenton process at neutral pH in continuous flow has been tested for three consecutive days. The aim of the treatment was to remove of contaminants of emerging concern (CECs) from wastewater treatment plant secondary effluents. To this end, a 5 cm-deep raceway pond reactor was run in continuous flow mode and the degradation of the C ...
DOI:
10.1016/j.jenvman.2020.110265

13. Characterization of Magnetic Series of Iron–Carbon Clusters FeₙC⁰,±¹ (n ≤ 13)

Author:
Limon, Patricio; Miralrio, Alan; Castro, Miguel
Source:
Journal of physical chemistry 2020 v.124 no.17 pp. 9484-9495
ISSN:
1932-7455
Subject:
iron,   etc   ; carbon; chemical bonding; ionization; magnetism;     Show all 5 Subjects
Abstract:
... The evolution of structural and electronic properties of neutral and charged iron clusters doped with a single carbon atom, FeₙC⁰,±¹ (n = 1–13) series, is studied in this work, which has been carried out throughout all-electron density functional calculations at the BPW91/6-311++G(2d,2p) level of theory. The results indicate a redshift of the bands in the infrared spectra due to carbon–iron stretc ...
DOI:
10.1021/acs.jpcc.9b11805

14. Outstanding comprehensive performance versus facile synthesis: Constructing core and shell-interchangeable nanocomposites as microwave absorber

Author:
Li, Zihan; Yang, Erqi; Qi, Xiaosi; Xie, Ren; Jing, Tao; Qin, Shuijie; Deng, Chaoyong; Zhong, Wei
Source:
Journal of colloid and interface science 2020 v.565 pp. 227-238
ISSN:
0021-9797
Subject:
iron oxides,   etc   ; absorption; molybdenum disulfide; nanocomposites; temperature;     Show all 5 Subjects
Abstract:
... It is still a great challenge to develop high-performance microwave absorption materials (MAMs). Herein, we first proved the excellent synergistic effect of Fe₃O₄/MoS₂ heterostructure based on the theoretical calculations. To effectively utilize the synergistic effect and morphology, core and shell-interchangeable Fe₃O₄@MoS₂ and MoS₂@Fe₃O₄ nanocomposites (NCs) were elaborately constructed. By cont ...
DOI:
10.1016/j.jcis.2020.01.002

15. Effect of graphene oxide (GO) on the hydration and dissolution of alite in a synthetic cement system

Author:
Zhu, Xiaohong; Kang, Xiaojuan
Source:
Journal of materials science 2020 v.55 no.8 pp. 3419-3433
ISSN:
0022-2461
Subject:
iron,   etc   ; calcium; cement; graphene oxide; gypsum;     Show all 5 Subjects
Abstract:
... An investigation is about the role of GO on the dissolution behaviours and hydration process of alite (Fe, F-C₃S, abb. C₃S) in a synthetic cement system, which also contains aluminate (Fe, F-C₃A, abb. C₃A) and gypsum. The results show that GO can increase the undersaturation levels of starting materials (C₃S, C₃A and gypsum) and thus promote their dissolution. The dissolution of C₃A might be more ...
DOI:
10.1007/s10853-019-04266-1

16. Growth of High-Quality Superconducting FeSe₀.₅Te₀.₅ Films on Pb(Mg₁/₃Nb₂/₃)₀.₇Ti₀.₃O₃ and Electric-Field Modulation of Superconductivity

Author:
Mei, Chenguang; Lin, Zhu; Zhang, Ruixin; Xu, Chengchao; Huang, Haoliang; Dong, Yongqi; Meng, Miao; Gao, Ye; Zhang, Xi; Zhang, Qinghua; Gu, Lin; Yang, Huaixin; Tian, Huanfang; Li, Jianqi; Lu, Yalin; Zhang, Guangming; Zhao, Yonggang
Source:
ACS applied materials & interfaces 2020 v.12 no.10 pp. 12238-12245
ISSN:
1944-8252
Subject:
iron,   etc   ; electric field; lead; superconductivity; temperature;     Show all 5 Subjects
Abstract:
... Heterostructures composed of superconductor and ferroelectrics (SC/FE) are very important for manipulating the superconducting property and applications. However, growth of high-quality superconducting iron chalcogenide films is challenging because of their volatility and FE substrate with rough surface and large lattice mismatch. Here, we report a two-step growth approach to get high-quality FeSe ...
DOI:
10.1021/acsami.9b18749

17. Magnetic vortex core-shell Fe3O4@C nanorings with enhanced microwave absorption performance

Author:
Wang, Xiao; Pan, Fei; Xiang, Zhen; Zeng, Qingwen; Pei, Ke; Che, Renchao; Lu, Wei
Source:
Carbon 2020 v.157 pp. 130-139
ISSN:
0008-6223
Subject:
iron oxides,   etc   ; carbon; holography; magnetism; permeability;     Show all 5 Subjects
Abstract:
... Fabricating microwave absorbers (MA) with strong attenuation capability and lightweight is still a challenge problem, which limit their further applications in our daily life. Herein, magnetic vortex core-shell Fe3O4@C nanorings (FNR-C) with excellent microwave absorption property have been successfully prepared by a facile strategy. Electron holography analysis is carried out to detect the magnet ...
DOI:
10.1016/j.carbon.2019.10.030

18. Nonclassical nucleation towards separation and recycling science: Iron and aluminium (oxy)(hydr)oxides

Author:
Lukić, Miodrag J.; Gebauer, Denis; Rose, Andrew
Source:
Current opinion in colloid & interface science 2020
ISSN:
1359-0294
Subject:
iron oxyhydroxides,   etc   ; aluminum hydroxide; aluminum oxide; recycling;     Show all 4 Subjects
Abstract:
... Separation, analysis and recycling technologies are of high interest for our modern societies, where colloidal iron and aluminium (hydr)oxides have important applications. However, there are significant gaps in the fundamental understanding of how these phases form in real systems. Classical nucleation theory cannot account for many experimental observations, and there is a dichotomy between the c ...
DOI:
10.1016/j.cocis.2020.03.010

19. Potential of biogas production from manure of dairy cattle fed on natural soil supplement rich in iron under batch and semi-continuous anaerobic digestion

Author:
Farghali, Mohamed; Mayumi, Maejima; Syo, Kuramoto; Satoshi, Aoki; Seiichi, Yasui; Takashima, Sayoko; Ono, Hijiri; AP, Yuhendra; Yamashiro, Takaki; Ahmed, Moustafa M.; Kotb, Saber; Iwasaki, Masahiro; Ihara, Ikko; Umetsu, Kazutaka
Source:
Bioresource technology 2020 v.309 pp. 123298
ISSN:
0960-8524
Subject:
iron; iron oxides,   etc   ; Holstein; anaerobic digestion; dairy cattle; dairy manure; gas production (biological); methane; soil;     Show all 9 Subjects
Abstract:
... This study provides a novel method for improving the anaerobic digestion (AD) of Holstein dairy manure (HDM) by the direct addition of Mineraso (MnS), a natural soil-derived supplement, to the feed of Holstein dairy cattle (HDC). MnS is chiefly composed of approximately 69.08% Fe₃O₄ and was supplemented at rates of 0 (F1), 25 (F2), and 50 (F3) g/head of HDC/d for two months. The HDM was then exami ...
DOI:
10.1016/j.biortech.2020.123298

20. Magnetic-heteropolyacid mesoporous catalysts for deep oxidative desulfurization of fuel: The influence on the amount of APES used

Author:
Li, Si-Wen; Wang, Wei; Zhao, Jian-She
Source:
Journal of colloid and interface science 2020 v.571 pp. 337-347
ISSN:
0021-9797
Subject:
iron; iron oxides,   etc   ; catalysts; desulfurization; fuels; magnetism; oxidants; oxygen; porous media; variance;     Show all 10 Subjects
Abstract:
... Magnetic-heteropolyacid mesoporous catalysts have been obtained, in which magnetic Fe₃O₄ in the center of MCM-41 mesoporous materials and APES (3-aminopropyl-triethoxysilane) used to link heteropolyacid. To noted, for the various molar ratio APES used in the synthesized process, different numbers of –OCH₃ were exposed in the final products (zero, one and two), named Fe@MP-1, Fe@MP-2 and Fe@MP-3, r ...
DOI:
10.1016/j.jcis.2020.03.054